A waxed amaryllis bulb is a bulb coated in decorative wax, allowing it to grow and produce large, trumpet-shaped flowers without soil or water, making it a popular, low-maintenance houseplant, that relies on stored energy for blooms in 4-8 weeks. You just place it in a bright spot, avoiding extreme heat, and watch it sprout stunning flowers for weeks, with the wax holding all necessary nutrients and moisture, though long-term growth requires planting after flowering.